Answer: C.) 1.12 seconds
Step-by-step explanation:
Hi, to answer this question we have to substitute h=0 (when the rock hits the ground the height above it is 0) in the equation given:
h (t) = –16t2 + 20
Solving for t (time)
0= –16t2 + 20
16t2=20
t2=20/16
t=√1.25 =1.12 seconds (option C)
Feel free to ask for more if needed or if you did not understand something.
Answer:
Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis.
Step-by-step explanation:
The range is the set of possible output values, which are shown on the y-axis.
Answer:
Median = 45
Step-by-step explanation:
Since the given data set is already in ascending order, we we just have to find the middle most number of the data set:
There are 2 middle numbers 40 and 50, so to find the middle most number find their average:
(40 + 50) / 2 = 45
Median = 45
Hope this helps!
